NPower Digital Charge Controller - 30 Amp
This little controller does exactly what it claims without fault. I have it connected to a secondary solar array of 2 205W panels, feeding 8 6v deep cycle golf cart (T-105) type batteries wired to 12v. It is a solid, but less costly version of simple 'brand name' controller for a simple system. The main systyem for the house is 1640w in parallel 820w arrays, two 30A MPPT controllers, parallel banks of 12 T105s (24 total) wired to 24v, into an outback VFX3524 sine wave inverter. This setup is protected with DC circuit breakers and lightning arrestors, and monitored with a trimetric and outback 'mate'. This system has worked great for a year and a half and counting. The secondary setup (with this controller) is to power a chest freezer, lights, and a couple of receptacles in the solar shed, so I decided to forego alot of the expense I had in the house system. I fused all points instead of using breakers and dedicated boxes. It's been in service about 4 months so far (as of Jan 2012), and works perfectly. We're offgrid, and I did the install after alot of research. I'd recommend this controller to anyone who wants a cost effective system and doesn't need MPPT capabilities.
January 9, 2012
EXCELLENT Charge Controller!
I just bought this charge controller along with 10 of the 15 Watt solar panels and this controller is awesome. Not only is it very well built, with a large heat sink on the backside, it provides GREAT status indications of everything going on with your batteries and solar panels! I highly recommend this controller if your are running a solar panel array of more than seven 15 watt panels or any of the other high output panels that go over 100 watts!
January 9, 2012
Works as advertised
Purchased this unit as a charge controller for my solar system at a remote cabin. It is spliced in between a Sharp 80W polycrystaline solar panel and a bank of three deep-cycle marine batteries.
While this unit isn't as feature-packed and fancy as some of the more expensive charge controllers out there, it was simple to hook up and does exactly what it says it will do. It gives you a rough idea of battery charge, status indicators to let you know whether it's in bulk-charge or float-charge mode, and a switch to see voltage and current out of the solar panel.
This controller was utilizing the full rated current output of my solar panel (4.7A DC) on a clear sunny day, meaning I can replenish four hours of having a 13W CFL on with about one hour of solar charge time.
October 10, 2011